Lawn mower



FIG. 1 is a perspective view of a lawn mower showing my new design;

FIG 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a top plan view thereof; and

FIG. 7 is a bottom plan view thereof.

The pattern which is fragmentarily shown in FIGS. 1-7 is understood to repeat uniformly throughout the indicated area. 

The ornamental design for a lawn mower, as shown and described. 